3.14 -3.15 (PS) ASSESSMENT REVIEW

Front

What is electronegativity?

Back

The ability of an atom to attract/accept electrons.

Front

How many valence electrons does Iodine have?

Back

Iodine has 7 valence electrons.

Front

How are elements arranged in the modern periodic table?

Back

Elements are arranged by atomic number.

Front

What fundamental property did Moseley discover was needed for organization of the periodic table?

Back

The atomic number.

Front

Which elements are arranged in order of increasing atomic number: Sr, Ca, Mg, Be or F, Cl, Br, I?

Back

F, Cl, Br, I are arranged in order of increasing atomic number.

Front

Define atomic number.

Back

The number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the significance of valence electrons?

Back

Valence electrons determine an atom's chemical properties and its ability to bond with other atoms.

Front

What is the relationship between atomic number and the periodic table?

Back

The atomic number determines the position of an element in the periodic table.

Front

What does a higher electronegativity indicate about an atom?

Back

A higher electronegativity indicates a stronger ability to attract electrons.

Front

How does the atomic radius change across a period?

Back

The atomic radius decreases across a period due to increased nuclear charge pulling electrons closer.